Fundamental Studies and the Optical Diagnostics of Laboratory Plasmas (Physics)

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A major thrust of this program is the study of ion diffusion and transport in turbulent plasmas, a topic of wide application, for example to edge-tokomak physics and to magnetospheric plasmas. The experiments make extensive use of laser induced fluorescence (LIF) and optical tomography techniques taking advantage of the availability of unique plasma configuration at U. Cal., Irvine: the Q-Machine, the Irvine Torus, and the Irvine Magnetic Mirror. Using these diagnostic techniques the investigators are able to establish a test particle in a plasma with fluctuating fields, follow it and compare experimental measurements with theoretical predictions. The focus will be on comparison with diffusion theory. In addition, with LIF techniques they will investigate the transition of stochasticity in plasmas. Additional projects include studies of mode coupling, wave launching, dusty plasmas, and diagnostic development.